Noise reduction lock body and noise reduction lock

Abstract

The utility model relates to the technical field of locks, and discloses a noise reduction lock body and a noise reduction lockset, and the noise reduction lock body comprises a shell, a spring bolt, a pull rod and a first buffer piece. A spring bolt hole is formed in one side of the shell; and the spring bolt is installed in the shell, and the spring bolt stretches out and draws back in the spring bolt hole to achieve opening and closing of the noise reduction lock body. The pull rod is arranged in the shell in a sliding mode, connected to the spring bolt and used for driving the spring bolt to stretch out of or retract into the spring bolt hole. The first buffer piece is arranged at the end, close to or away from the spring bolt, in the shell and used for conducting noise reduction and shock absorption on the whole noise reduction lock body, and when the spring bolt stretches out of or retracts into the spring bolt hole, the pull rod abuts against the first buffer piece, and it is guaranteed that when the pull rod is poked to open or close the noise reduction lock body, noise reduction is achieved. And the spring bolt and the shell cannot directly collide due to operation, so that large noise cannot be generated.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, and in particular to a noise reduction lock body and a noise reduction lock. Background Art

[0002] When opening and closing a door, the lock tongue of a traditional lock is usually exposed on the outside of the lock. When the door is opened or the user passes by, it may scratch the user's clothing, and in serious cases, it may even scratch the skin and cause wounds. Therefore, a new type of magnetic lock has been developed. The lock tongue can be retracted into the lock body under the action of magnetism after the door is opened, avoiding this problem.

[0003] However, when using existing magnetic locks, a loud noise will be generated when the lock tongue with magnetic parts collides with the shell and buckle box, which greatly affects the user experience. Some lock bodies with noise reduction structures have noise reduction structures set on the lock tongue, which increases the weight of the lock tongue and affects the user's operability when opening the door to a certain extent. Utility Model Content

[0004] The utility model is made in order to solve the above technical problems, and its purpose is to provide a noise-reducing lock body, which does not make loud noise during the entire unlocking operation.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a noise reduction lock body, comprising: a shell, one side of which is provided with a lock tongue hole; a lock tongue, which is installed in the shell; a pull rod, which is slidably arranged in the shell and connected to the lock tongue; a first buffer component, which is arranged in the shell at one end close to or away from the lock tongue, and when the lock tongue extends out or retracts into the lock tongue hole, the pull rod abuts against the first buffer component.

[0006] Preferably, a second buffer is further included, which is arranged in the shell at one end away from the first buffer. When the lock tongue extends out or retracts into the shell, the pull rod abuts against the first buffer or the second buffer.

[0007] Preferably, it further includes a limit block, which is arranged on the shell, and the first buffer member and the second buffer member are both installed on the limit block; the pull rod includes a mounting column, and when the lock tongue extends out or retracts into the lock tongue hole, the mounting column rests on the limit block.

[0008] Preferably, an abutment portion is provided on the pull rod, the abutment portion is located between the lock tongue and the pull rod, and the abutment portion abuts against the first buffer member.

[0009] Preferably, the housing further comprises a positioning post, which is arranged on a side away from the lock tongue; and the second buffer member is installed on a side of the positioning post close to the pull rod.

[0010] Preferably, the second buffer is annular and is sleeved on the positioning post.

[0011] Preferably, the locking tongue includes a receiving groove, and the first buffer member is installed in the receiving groove.

[0012] Preferably, it also includes a peach assembly, which is rotatably arranged in the shell and includes a peach body and a torsion spring; a limiting column is provided on the shell, the first end of the torsion spring is fixed to the shell, and the second end of the torsion spring abuts against the peach body, and the torsion spring is reset and rotated until the peach body abuts against the limiting column.

[0013] Preferably, a buffer sleeve is provided on the limiting column, and the peach body can be rotatably abutted against the buffer sleeve.

[0014] Preferably, the paddle body further comprises an abutment column, and the second end abuts against a side of the abutment column away from the first end.

[0015] The utility model provides a noise reduction lock, comprising a buckle box and a noise reduction lock body as described above, wherein the lock tongue and the inside of the buckle box are correspondingly provided with magnetic parts, and the lock tongue extends out of the noise reduction lock body and into the buckle box under the action of the magnetic parts.

[0016] The utility model provides a noise reduction lock body, comprising a housing, a lock tongue, a pull rod, and a first buffer member. The housing has a lock tongue hole on one side. The lock tongue is mounted in the housing and extends and retracts within the lock tongue hole to open and close the noise reduction lock body. The pull rod is slidably disposed in the housing and connected to the lock tongue, and is used to drive the lock tongue to extend or retract into the lock tongue hole. The first buffer member is disposed in the housing at one end close to or away from the lock tongue, and is used to reduce noise and dampen vibrations of the entire noise reduction lock body. When the lock tongue extends or retracts into the lock tongue hole, the pull rod abuts against the first buffer member, ensuring that when the pull rod is toggled to open or close the noise reduction lock body, direct collision between the lock tongue and the housing is prevented, thereby preventing the generation of loud noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic structural diagram of a noise reduction lock body involved in one embodiment of the present utility model.

[0018] Figure 2 This is another structural schematic diagram of a noise reduction lock body involved in one embodiment of the present utility model.

[0019] Figure 3 This is an exploded view of a buckle box and a pull rod involved in one embodiment of the present utility model.

[0020] Figure 4 This is a rear view of a buckle box and a pull rod in one embodiment of the present invention. DETAILED DESCRIPTION

[0021] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0022] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set on" are used to express open-ended inclusion and mean that in addition to the listed elements / components / etc., there may be additional elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

[0023] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0024] In this utility model, a noise reduction lock body is disclosed, please refer to Figures 1 to 4The noise reduction lock body includes a housing 1, a lock tongue 2, a pull rod 3, and a first buffer member 4. A lock tongue hole 10 is provided on one side of the housing 1. The lock tongue 2 is installed in the housing 1 and extends and retracts in the lock tongue hole 10 to open and close the noise reduction lock body. The pull rod 3 is slidably arranged in the housing 1 and connected to the lock tongue 2, and is used to drive the lock tongue 2 to extend or retract into the lock tongue hole 10. The first buffer member 4 is arranged in the housing 1 at one end close to or away from the lock tongue 2, and is used to reduce noise and dampen shock for the entire noise reduction lock body. When the lock tongue 2 extends or retracts into the lock tongue hole 10, the pull rod 3 abuts against the first buffer member 4 to ensure that when the pull rod 3 is toggled to open or close the noise reduction lock body, the lock tongue 2 and the housing 1 do not directly collide due to the operation, thereby generating a loud noise.

[0025] Furthermore, in some embodiments, the noise reduction lock body further includes a second buffer member 5, which is disposed within the housing 1 at an end away from the first buffer member 4. Along the sliding direction of the pull rod 3, the first buffer member 4 and the second buffer member 5 are disposed on either side of the housing 1. When the lock tongue 2 extends from the housing 1, the pull rod 3 abuts against the first buffer member, and when the lock tongue 2 retracts into the housing 1, the pull rod 3 abuts against the second buffer member 5. This further ensures that no noise is generated due to collision between the lock tongue 2 and the housing 1 during both opening and closing operations, thereby improving the noise reduction performance of the entire noise reduction lock body. The positions of the first buffer member 4 and the second buffer member 5 can be interchanged.

[0026] In some embodiments, please refer to Figure 2 The noise reduction lock body further includes a stopper 11 disposed on the housing 1, and the first and second buffer members 4 and 5 are both mounted on the stopper 11. The pull rod 3 includes a mounting post 31. When the lock tongue 2 extends or retracts into the lock tongue hole 10, the mounting post 31 abuts against the stopper 11, further ensuring that the movement of the mounting post 31 during the entire unlocking process will not directly collide with the housing 1 and generate loud noise.

[0027] As will be appreciated, the first and second buffer members 4, 5 are silicone rubber members that absorb and mitigate the impact force between the pull rod 3 and the stopper 5, reducing the vibration generated when the noise reduction lock body is opened and closed. Furthermore, the first and second buffer members 4, 5 can also be made of plastic or fiber materials, such as those with a certain degree of elasticity and impact resistance.

[0028] In some embodiments, the pull rod 3 is provided with an abutment portion 32, which is located between the lock tongue 2 and the pull rod 3 and abuts against the first buffer member 4. The provision of the abutment portion 32 increases the contact area between the pull rod 3 and the first buffer member 4, ensuring that when the abutment portion 32 abuts against the first buffer member 4, the force received by the first buffer member 4 is relatively uniform, thereby preventing the abutment portion 32 from exerting excessive force on the first buffer member 4 when the pull rod 3 moves, causing damage to the first buffer member 4 and increasing repair costs.

[0029] Furthermore, the housing 1 includes a positioning post 12, which is positioned on a side away from the lock tongue 2. A second buffer member 5 is mounted on the side of the positioning post 12 near the pull rod 3, so that when the pull rod 3 moves away from the lock tongue 2, it abuts against the second buffer member 5. The second buffer member 5 is positioned on the positioning post 12, simplifying the internal design of the noise-reducing lock body while ensuring that it is stably positioned along the movement path of the pull rod 3. This ensures that when the noise-reducing lock body is opened and closed, there is no direct collision between the lock tongue 2 and the housing 1, which would otherwise generate loud noise.

[0030] It can be understood that in some embodiments, the second buffer member 5 is annular and is mounted on the positioning column 12. On the one hand, this simplifies the operation required to fix the second buffer member 5 on the positioning column 12. On the other hand, it avoids the second buffer member 5 independently fixed on the positioning column 12 from falling off the positioning column 12 due to constant collisions, resulting in failure of noise reduction.

[0031] Similarly, in order to ensure that the first buffer component 4 does not fall out of the shell 1 due to the action of the collision force when it continuously collides with the pull rod 3, in some embodiments, the shell 1 includes a accommodating groove 13, and the first buffer component 4 is installed in the accommodating groove 13, and the first buffer component 4 is further fixed in the accommodating groove 13 to avoid the first buffer component 4 falling out of the shell 1 due to extrusion deformation when the abutting portion 32 abuts and collides with the first buffer component 4, thereby affecting the noise reduction effect of the entire noise reduction lock body when opening and closing.

[0032] In some embodiments, the noise reduction lock body further includes a paddle assembly 67, which is rotatably disposed within the housing 1 and includes a paddle body 61 and a torsion spring 62. The paddle body 61 is used to drive the pull rod 3 to move to achieve the opening and closing of the noise reduction lock body. The torsion spring 62 twists and drives the paddle body 61 to rotate, causing the lock tongue 2 to pop out of the lock tongue hole 10. A limiting post 14 is provided on the housing 1. The first end 63 of the torsion spring 62 is fixed to the housing 1, and the second end 64 of the torsion spring 62 abuts against the paddle body 61. The paddle body 61 is reset and rotated by the action of the torsion spring 62. The torsion spring 62 is reset and rotated until the paddle body 61 abuts against the limiting post 14, further limiting the rotation of the paddle body 61, preventing the torsion spring 62 from rotating too much with the paddle body 61 and thus failing, thereby affecting the service life of the entire noise reduction lock body.

[0033] Further, please refer to Figure 4 The paddle body 61 also includes an extension plate 66, and a corresponding accommodating groove is provided on the pull rod 3 (not shown in the figure). The extension plate 66 extends into the accommodating groove. When the paddle body 61 rotates to unlock the noise reduction lock body, the extension plate 66 abuts against the inner wall of the accommodating groove and drives the pull rod 3 to move.

[0034] It can be understood that the end of the extension plate 66 facing the inner wall of the accommodating groove is arc-shaped, thereby ensuring that when the extension plate 66 drives the pull rod 3 to move, the contact surface between the pull rod 3 and the extension plate 66 can move smoothly relative to each other, ensuring the user's unlocking feel and enhancing its usability.

[0035] In addition, in some embodiments, the shifter body 61 further includes an abutment column 65, and the second end 64 abuts against the abutment column 65. The abutment column 65 is used to limit the second end 64 of the torsion spring 62 to the shifter body 61, thereby preventing the torsion spring 62 from being unable to generate a torsional force when the shifter body 61 rotates, resulting in a reset failure.

[0036] In some embodiments, a buffer sleeve 15 is provided on the limiting post 14. When the paddle body 61 is rotatably abutted against the buffer sleeve 15, the buffer sleeve 15 is used to buffer the collision between the limiting post 14 and the paddle body 61 and absorb and reduce the noise generated by the collision. On the one hand, the operation of fixing the buffer sleeve 15 on the limiting post 14 is simplified. On the other hand, since the buffer sleeve 15 is used to buffer the collision between the paddle body 61 and the limiting post 14, when the paddle body 61 rotates, the paddle body 61 may fall off due to the rotation of the paddle body 61, which in turn affects the buffer sleeve 15. A limiting plate 67 is formed on the paddle body 61, which is rotatably abutted against the buffer sleeve 15. The provision of the limiting plate 67 increases the contact area between the paddle body 61 and the buffer sleeve 15, avoids the buffer sleeve 15 from being easily damaged due to only a partial area of the buffer sleeve 15 being in contact with the paddle body 61, and increases the service life of the entire buffer sleeve 15.

[0037] The present invention provides a noise reduction lock, comprising a buckle box 7 and any of the above-mentioned noise reduction lock bodies, which prevents the lock from being locked when the door is closed due to reasons such as misalignment between the noise reduction lock body and the buckle box 7. In some embodiments, the lock tongue 2 and the buckle box 7 are provided with corresponding magnetic members 8. The two magnetic members 8 are arranged in opposite directions or the lock tongue 2 is made of magnetic metal. The magnetic member 8 is provided in the buckle box 7. When the user operates the paddle 61 to unlock the door, the lock tongue 2 moves with the pull rod 3 and is received in the buckle box 7 and the noise reduction lock body. At this time, the pull rod 3 and the lock tongue 2 overcome the magnetic force of the magnetic member 8 under the action of the paddle 61, thereby unlocking the door. When the unlocking action is completed and the door is no longer unlocked, the noise reduction lock body and the buckle box 7 are aligned. Under the action of the magnetic member 8 in the buckle box 7, the lock tongue 2 extends out of the noise reduction lock body and into the buckle box 7, and remains in the buckle box 7, thus completing the locking of the noise reduction lock. And due to the effect of magnetic force, when the noise reduction lock body and the buckle box 7 reach approximate alignment, the lock tongue 2 in the noise reduction lock body tends to approach the magnetic part 8 in the buckle box 7, further driving the alignment between the noise reduction lock body and the buckle box 7, further ensuring the locking effect of the noise reduction lock.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A noise reduction lock body, characterized in that: include: The housing has a lock bolt hole on one side; a lock tongue, mounted in the housing; a pull rod slidably disposed in the housing and connected to the locking tongue; The first buffer is arranged in the housing at one end close to or far away from the lock tongue. When the lock tongue extends out of or retracts into the lock tongue hole, the pull rod abuts against the first buffer.

2. The noise reduction lock body according to claim 1, characterized in that: Also includes: The second buffer is arranged in the housing at one end away from the first buffer. When the locking tongue is extended or retracted into the housing, the pull rod abuts against the first buffer or the second buffer.

3. The noise reduction lock body according to claim 2, characterized in that: Also includes: A limit block is provided on the housing, and the first buffer member and the second buffer member are both mounted on the limit block; The pull rod includes a mounting post, and when the lock tongue extends out of or retracts into the lock tongue hole, the mounting post abuts against the limiting block.

4. The noise reduction lock body according to claim 2, characterized in that: The pull rod is provided with an abutting portion, the abutting portion is located between the locking tongue and the pull rod, and the abutting portion abuts against the first buffer component.

5. The noise reduction lock body according to claim 4, characterized in that: The housing further comprises a positioning post, wherein the positioning post is arranged on a side away from the locking tongue; The second buffer is installed on a side of the positioning column close to the pull rod.

6. The noise reduction lock body according to claim 5, characterized in that: The second buffer is annular and is sleeved on the positioning post.

7. The noise reduction lock body according to claim 1, wherein: Also includes: A paddle assembly is rotatably disposed in the housing and includes a paddle body and a torsion spring; A limiting column is provided on the housing, a first end of the torsion spring is fixed to the housing, a second end of the torsion spring abuts against the shifting peach body, and the torsion spring is reset and rotated until the shifting peach body abuts against the limiting column.

8. The noise reduction lock body according to claim 7, wherein: A buffer sleeve is provided on the limiting column, and the peach body can be rotatably abutted against the buffer sleeve.

9. The noise reduction lock body according to claim 7, wherein: The paddle body further includes an abutment column, and the second end abuts against a side of the abutment column away from the first end.

10. A noise reduction lock, characterized in that: It comprises a buckle box and a noise reduction lock body as described in any one of claims 1 to 9 above, wherein: The lock tongue and the interior of the buckle box are correspondingly provided with magnetic parts. Under the action of the magnetic parts, the lock tongue extends out of the noise reduction lock body and extends into the buckle box.

Images